The user manual is available on the main site. This extract from it should help you...
Chris.
Make a Wake-up Timer
The Wake-up Timer is a once-only Timer, and must be programmed each
time you wish to use it.
> While the system is in standby, press TIMER. The time for the latest
Wake-up Timer is shown in the display. The digits blink.
> Press or to fi nd the time you want the system to start playing.
Press and hold or to step quickly to the desired time.
> Press the button of the source you want to use for your Wake-up
Timer; RADIO or A MEM. ‘Pr’ (for a radio program) or ‘A’ (for A MEM)
is shown in the display. If you do not choose a source, the radio is used.
> Press STORE to store the Wake-up Timer. The time for the Wake-up
Timer is briefl y shown in the display.